A quartet of players will not accompany the United States national team for Tuesday's game in Panama and as a result only 19 players will be available.

Injuries to Landon Donovan (ankle) and Jermaine Jones (knee) will see them return to their club teams to recover for league action.

"Jermaine's case is more of a concern," Jurgen Klinsmann said in an official statement. "His knee was bothering him all night [Saturday] but he battled through. It's clear that the issue with his knee is something that should be taken care of right away so he can be 100 percent for Schalke and the national team as soon as possible."

Jones was reportedly set to undergo minor surgery on his knee, but it is unclear whether he will wait until the winter break to have the operation.

Meanwhile, Tim Howard and Matt Besler will be allowed to return to their clubs early as Klinsmann plans to look at different players against Panama. Klinsmann stated in no uncertain terms that Brad Guzan and Clarence Goodson will be given the start.

Sean Johnson of the Chicago Fire is the only addition to the USMNT roster ahead of Tuesday's game; Chris Wondolowski, Brad Davis, and Clarence Goodson were also late additions to the roster last week.